Question about 1999 Chevrolet K1500
I would check for a bad wheel bearing on the rear, also check the u-joints on the drive shaft.
Posted on Jan 22, 2018
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Posted on Jan 02, 2017
I'm having the same problem with my 2006 Chevy 2500 duramax...The humming starts at 25mph and then gets less prominent and then at 50mph it gets more prominent and louder, then at 60mph you can hardly hear it.....I did notice a little bit of leakage where the front axel meets the from diff on the drivers side.
Posted on Aug 09, 2008
SOURCE: 2001 chevrolet silverado z71
replace the front u joint. I had the same issue with my truck, and I noticed that the front u joint didn't come stock with a greese zerk, the oem replacement does so they wear out fast. by the time I found it, it still looked ok till I removed the drive shaft....It was very close to wearing through.
Posted on Dec 11, 2008
well make sure it is the tranfercase because if it was u wouldent have 4wd and u wouldent be able to drive it but it would be cheper to rebuild it but make sure first because some people are just out for your money good luck
Posted on Feb 02, 2009
It does not seem that sufficient diagnosis was done. No, you cant give a specific diagnosis like that without tearing unit down. It's likely that they told you the most common failure and left it at that. Likely there is a problem with your unit...I think this becomes more of a trust issue than a mechanical one. A second opinion from an independent reputable shop may help but either way, you need to have it fixed. In not using it much, it makes me wonder how it got worn.
Posted on Mar 19, 2009
Sorry to tell you, the transfer case shift fork is going bad. Fix it ASA, or it will cost you another few hundred dollars for a planetary gear.
Posted on Jun 23, 2009
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